The universe didn't force you not to believe in magic. You could have spent your whole life believing magnets are magical stones, that the electromagnetic force is magical energy, and that computer engineers are wizards who conjure spirits from magic. And you could have been 100% factually and scientifically correct.
But you chose to believe that magic is by definition not real, because you didn't want to live in a world of whimsy and wonder. You defined magic as supernatural, in opposition to the natural world. While every scientist knows that nature is just a word for everything that exists. You chose to define magic in a way that it wouldn't exist, denying it through tautology and not through science.
Why did you choose that?
Magic has existed throughout and within Judaism and Christianity.
Sure, different forms of it have been suppressed and accepted to varying degrees based on time, place, your social status, etc, but magic has played an important role throughout the entirety of those religion's histories.
And it certainly was not only Christians who hated magic that did not come from their God.
Just in the Abrahamic faiths alone, there are Christian Occultists that were criticized and persecuted by other Christians, Jewish Occultists that were criticized and persecuted by other Jews, and Muslim Occultists who were criticized and persecuted by other Muslims.
And that is to say nothing of pre Christian Rome's persecution of the many varied druids and shamans of Europe north of the Alps.
Hell, we even have decent documentation of religious upheaval in ancient Egypt based around opposing cults with opposing gods and opposing magic.
You seem to be critical of post-christian worldviews, as you say, but your ideology seems to be akin to fascism:
Make up an ahistorical, vague, idealized past, with mythical 'good times' that were disrupted by the advent of the desecrators, in your case, christians.
Yeah, yeah, christian views are varied. But you see, when I use the word postchristian, I'm describing the sum total effects of 2000 years of christian actions. In particular the middle ages drive towards seeing magic as the work of the devil and the canon ban on Artes Prohibitae in the 1450s, which eventually culminated in the witch hunts famously including Salem. The magic-accepting christians failed to effect the cultural changes necessary to prevent KidnappedByKitties and others from thinking magic is ineffable.